Reborn as a Barrier Master (Manga) Volume 4

 Reborn as a Barrier Master (Manga) Volume 4 - 164 pages

Souichi (Artist); Kataoka Naotaro (Original Creator); Shizuki Hitomi (Character Design)

Summary (From Goodreads)

One day, ordinary office worker Kubo Tamotsu is suddenly reincarnated in another world as a 6-year-old slave. The household of the Basam Marquess, who raised him as a Barrier Master named Linus, gets caught up in the Royal Army's rebellion and falls. Desperately overcoming his grief, Linus begins a new life in the neighboring Hideta Empire. One day, while resolving trouble concerning the First Princess and helping a pretty demon girl, he meets a beautiful part-human, part-sheep woman in the slave market...

Review

It's certainly heartwarming to see a former slave like Linus pay forward the kindness and generosity he received from the Basam household.  It does help somewhat to offset the frankly rather gory end met by a minor antagonist in this volume.